-er -ic c-- ccc cce ccf cci ccn ccp ccr ccz ce- cec cee cef cei cen cep cer cez cfc cfe cff cfi cfn cfp cfr cfz ci- cic cie cif cii cin cip cir cn- cnc cne cnf cni cnn cnp cnr cpc cpe cpf cpi cpn cpp cpr cpz crc cre crf cri crn crp crr crz cz- czc cze ec- ecc ece ecf eci ecn ecr eec eee eef een eep eer ef- efc efe eff efi efp efr eic eie eif eii ein eip eir en- enc ene enf eni enn enp enr enz ep- epc epe epf epi epn epp epr epz erc ere erf eri ern erp err erz eze ezf ezr ezz fcc fce fcf fci fcn fcp fcr fcz fec fee fef fei fen fep fer fez ffc ffe fff ffi ffn ffp ffr ffz fic fie fif fii fin fip fir fiz fnc fne fnf fni fnn fnp fnr fnz fpc fpe fpi fpn fpp fpr frc fre frf fri frn frp frr i-f icc ice icf ici icn icp icr icz ie- iec iee ief iei ien iep ier ifc ife iff ifi ifn ifp ifr ifz iic iie iif iii iin iip iir in- inc ine inf ini inn inp inr ipc ipe ipf ipi ipn ipp ipr ir- irc ire irf iri irn irp irr ize izi izz n-i ncc nce ncf nci ncn ncp ncr ne- nec nee nef nei nen nep ner nez nfc nfe nff nfi nfn nfp nfr nic nie nif nii nin nip nir niz nnc nne nnf nni nnn nnp nnz npc npe npf npi npn npp npr npz nrc nre nrf nri nrn nrp nrr nrz nze nzf nzi nzp nzz p-p pcc pce pcf pci pcn pcp pcr pec pee pef pei pen pep per pez pfc pfe pff pfi pfn pfp pfr pic pie pif pii pin pip pir piz pn- pnc pne pnf pni pnn pnp pnr ppc ppe ppf ppi ppn ppp ppr ppz prc pre prf pri prn prp prr prz pzc pzp rcc rce rcf rci rcn rcp rcr re- rec ree ref rei ren rep rer rez rfc rfe rff rfi rfn rfp rfr rfz ric rie rif rii rin rip rir riz rnc rni rnn rnp rnr rnz rpc rpe rpf rpi rpn rpp rpr rpz rrc rrf rri rrn rrp rrr rze zce zec zee zef zen zep zer zez zfc zfn zfr zie zif zin zip zir ziz znc zne znn znp zpc zpe zpf zpi zpp zpr zrp zzr zzz